Unsure... I'm female born Oct 29 1991 and he was born Jul 29 1989

We've been together for 4 years, also currently managing a long distance relationship for 2 years. We want to get married but it's said both won't bring each other much luck and financial stability. We love each other, but I've already noticed many matching signs and characteristics said about goats and snakes and their combinations, such as no real career success, less money, health issues, the goat's tendency to be too dependent and so on. My family truly believes in Chinese Zodiac, which makes me more unsure and worried if we really can match?